<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
</head>
<body>
  <input type="file" id="multiple" accept="image/*" multiple="multiple" />
  <button class="getF">点击获取</button>
</body>
<!-- <script src="./index.js"></script> -->
<script>
  var btn = document.querySelector('button')
  btn.onclick = function () {
    console.log(document.querySelector('input').files)

  }


  document.querySelector('input').onchange = function (val) {
    console.log(val)
  }
</script>
</html>